bbawley



useful Intim, Quesiti, ailing-Pumps eraf! tes'ian Wells '5l and 'I'.dojliereby'pleclare i' 'lf lowiiigto.. Ebe'. full," clear, and exac vdescrip l 1:1611message@.has hadf-rQ-rnaea panyingdrawing, jfoimingpart o'fth'is specili-y catioil", inwhich; ,l i, .i

Figure 1 is a verticalsection'of `myfingipiio'ved hailing-pump, showin g'theposition of tlie parts when the pump is being raised out 'of the well. Fig. 2 is a like view of the same when resting on the bottom of the well, or when discharging.

Like letters of reference indicate like parts in each.

My present invention has special reference to the improvement of the base and lower valve of bailing-pumps. It is especially useful with the elastic suction-bailer forming the subjectmatter of my Patent No. 194,215, August 14, 187 7 for bailers for oil-wells, but is designed also for bailing-pumps having rigid bodies. The elastic bailer is liable to be bent and distorted at the bottom by contact with the well, or in raising the valve to discharge the load, and thus in time becomes useless.

My invention consists in providing` the lower end of the bailer with a valve chamber or tube, containing the receiving and discharge ports, and a valve-seat and valve, and having a limited movement in or upon the lower end of the bailer, for the purpose of automatically opening and closing the valve.

The drawing shows a flexible bailer, the part a being the flexible body, and b the piston, containing avalve, c, and operated by the rope or connection d.

The iiexible body c, I now provide with a metallic tubular part, e, in which I hang loosely, by means of a rod or bail, f, a valve-stem, g. Sliding into the lower end of the tubular end e, so as to form a telescopic joint therewith, is a smaller metallic tube, h, which forms avalvechamber for the lower valve. The upper end of the tubular valve-chamber h has a leather cup or other suitable packing, fi, around it, so that a tight joint shall be formed between it and the tubular part c. At or near its lower end are the receiving and discharging openou ycfjfniutleranfustatef .invented/a new and The u ie `stem, and the machine is f f-'ifhiefvalve in,Ipreferfto'maltY ffa'jdskf metal," jm ,having-a ilis'lnm?, of leather lcrotliersui'ta j` ble packing, on theinsi'de, thewhole being' se?" cured `o'irthej threaded steiii by nutsgfbut any other suitable forni of 'valve maybeuse'd; ",lhe f' wholeniacliineis usually from tei'rto forty'feet in length.

rlhe operation of the machine is as follows: It is lowered into the well by the cord d. Then the lower end encounters the bottom of thewell, the tube c slides down on the valve-chamber li until the bail f rests upon the upper end of the latter. This causes the valve m to pass below the ports la, and admit the water and sand to enter the body of the bailer. The piston b continues its descent after the body of the bailer comes to rest until it encounters thebail f. rEhe valve c of the piston b is necessarily open during its descent. The operator then begins to lift. As soon as the piston b begins its ascent the valve c closes, and the tube a is filled by the the holes 7o. When the piston has traversed the entire length ofthe tube a it encounters the bail n, and thereby raises the tube a., which, in turn, raises the valve m imtil the latter is seated on the seat Z, closing the lower end of the bailer, and retaining the water and sediment therein until it is raised to the top of the well and discharged. -The ports l.: are opened to discharge the contents of the bailer by standing the latter on its lower end, when the weight of the tube a will cause it to slip down on the tubular valve-chamber 71uuseatin g the valve m and opening the ports 7c, thereby permitting the contents to flow out. i If, for any reason, they do not, the valve may be removed by taking oft the nut o, when, the entire end of the tube being open, the obstruction may be removed or needed repairs made. The position of the ports' and the form of the valve permits the ports to be entirely uncovered, so as to give a discharge unobstructed by the valve, and the weight of the iiisiueffthechamber; t

e gf. projects 'below-the vaiveseat water and sand drawn in from the well through sand in the valve aids in unseating it to Veect the 'discharge, whilein prior machines the valve obstrncts the`-dischargeopening, and is held in its seat by the weight of the sand andl water.

These devices are used during the drilling of the well, for the purpose of bailin g it out. A well is flrst bored to a smaller caliber than is desired, and then is reamed out to the proper size.

, In order to use my improved bailer in wells thus in progress, I either use onecorresponding to the smaller bore, or I make the bottom section or valve-chamber h of smaller diameter than thebody of the bailer, so that, the body being in the wider portion of the well, the bottom section h will proj ect down into the smaller hole. The lower section h may be of the same diameter as thebody a, but with a suitable sleeve or socket for the sliding joint; and this construction can be used in drilling wells if it correspond withl the size ofthe smaller diameter of the same, so as to reach the bottom.

, What I claim as my invention, and desire to secure by Letters Patent, is

. 1. In. a bailing-piunp for Artesian wells, a telescopic section whose bore is continuous with the pump-body, in combination with a valvearranged and seated upon or within the telescoping section, and adapted to be open atcdby the sliding section', substantially as specified. Y

2. A bailing-pump having a projecting valve-section o f less diameter than the body of the pump, said section-having a limited longitudinal movement on the body of the pump, so as to seat and unseat a valve arranged in or uponv the "same, substantially as specified.

3. A hailing-pump provided with a valve capable of opening downward, so that the V"weight of the load shall aid in uuseating it,

substantially as described.

4. A hailing-pump provided with a valvestem suspended from the body, a lower slidingvalve-section, anda valve attached tothe valve-stem in the valve-section below a. seat placed therein. and adapted to be opened and closed by the movements of the sliding valvesection, substantially as described.

. In testimony whereof I, the said DEWITT C. BRAWLEY, have hereunto vset my hand.

DEWITT C. BRAWLEY.

\Vit 11 esses v 4 R; C. WRENsHALL, Y

T. B. KERR. 

